Article 4: How to Select a Rectifier Bridge? Comparative Analysis of KBPC, KBP, KBJ, and GBJ Series Models

The rectifier bridge is the core component for converting AC to DC and is widely used in switching power supplies, adapters, lighting power supplies, industrial power supplies, and charging pile equipment. Different package types and series of bridges have completely different power ratings. Choosing the wrong one can easily lead to overheating, breakdown, or inability to drive the load.  diode

Differences in Mainstream Series Selection:

1. KBP Series: Small Current Flat Bridge, Suitable for Low-Power Adapters, Lamps, and Small Appliance Power Supplies, Offering High Cost Performance.

2. KBJ/GBJ Series: Medium-power rectifier bridges with high voltage resistance and excellent heat dissipation, suitable for conventional switching power supplies and industrial control equipment.

3. KBPC Series: High-power square bridges, featuring high current and high voltage endurance, suitable for industrial power supplies, high-power inverters, and charging pile power supplies.

Selection Key Points:

The rated current should be selected based on more than twice the actual load;

2. For voltage resistance, prioritize the 1000V standard universal specification, suitable for wide voltage AC input;

3. High-power equipment must be equipped with heat sinks to prevent power derating due to high temperatures. diode

The bridge rectifier is the most widely used component in power supply mass production, and standardized selection can significantly reduce rework rates and procurement costs.